Explain a couple drops of phenophalein indicator

Assignment Help Chemistry
Reference no: EM13226548

2g KHP were added to a beaker with 25mL of water and a couple drops of phenophalein indicator and then was titrated with 8.1mL of NaOH until it turned pink. what is the concentration of NaOH?

Reference no: EM13226548

Questions Cloud

Depict and discuss the mechanism of the diels-alder reaction : Draw and discuss the mechanism of the Diels-Alder reaction (with arrows to show the electron movements). Draw the orientation of the reacting p-orbitals and indicate how they overlap to form product.
What is the elasticity coefficient for each price : Prepare a graph showing the breakeven point and any profit or loss at the current price of $7. Explain to the Golden Star management the implications of this analysis and What is the elasticity coefficient for each price between $6.50 and $7.50? I..
Explain each of the five most prevalent revenue sources : Thoroughly explain each of the five most prevalent revenue sources for a professional sport team. Which do you think is most important? Least important? Why do you think this way.
Explain how to implement the linear congruential algorithm : Write a MATLAB script to implement the linear congruential algorithm to generate 5000 pseudo-random variates in the interval (0,1). Use the following parameters: seed=17; A=1103515245; M=2147483648; C=12345.
Explain a couple drops of phenophalein indicator : a couple drops of phenophalein indicator and then was titrated with 8.1mL of NaOH until it turned pink. what is the concentration of NaOH?
Define the compound mgso4 is called epsom salts : The compound MgSO4 is called Epsom salts. How many grams will you need to prepare a bath containing 5.80 moles of Epsom salts? Express your answer using three significant figures.
Design a voltage-divider network to supply the load : The voltage across the load must remain between 4.7 and 5.0 V for all values of load current. Design a voltage-divider network to supply the load. You may assume that resistors of any value desired are available.
Explain intial concentration when the initial concentration : How long will it take for the concentration of XY to decrease to 12.5% of its intial concentration when the initial concentration is 0.100M? When the initial concentration is 0.200M?
Develop a strategy for a new sport product : Develop a strategy for a new sport product. In your answer describe the sport product and include, and thoroughly explain, all pertinent steps in developing the strategy.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the bohr effect in oxygen binding by hemoglobin

Describe the Bohr effect in oxygen binding by hemoglobin, including all structural

  What is the volume of a gas

What is the volume of a gas at T=35.0C and P=675 torr if the same sample occupied 42.6L at T=-27.3C and P=1.000 atm.

  Explain what are the names of m and ms

An unknown metal M reacts with sulfur to form a compound with the formula MS. If 4.37 g of M reacts with 2.51 g of S, what are the names of M and MS?

  Find out the ionization constant of the acid

dissolved in water to produce 25.0 mL of a solution with pH = 3.28. Determine the ionization constant of the acid.

  State sodium fluoride and lead nitrate are soluble in water

Sodium fluoride and lead nitrate are both soluble in water. If 1.13 g of NaF and 0.232 g of Pb(NO3)2 are dissolved in sufficient water to make 1.00 L of solution, will a precipitate form?

  Calculate ?h? for the given reaction

Given the following data H Cl bond enthalpy = +431 kJ/mol, ?Hf HCl(g) = -92.31 kJ/mol

  Find out the initial and final pressures within the reactor

dissociate into two NO2 molecules if one mole of pure N2O4 is introduced to a 10 liter constant volume, constant temperature of 298K reactor. In addition determine the initial and final pressures within the reactor and the composition of the equil..

  Define metals react with most acids to produce gas

According to the activity series, which of these metals will react with most acids to produce H2 gas?

  State solid calcium hydroxide is inadvertently transferred

While carrying out Part A, some of the solid calcium hydroxide is inadvertently transferred to the beaker and titrated. a. Will more, less, or the same amount of HCl be used for the titration? Explain.

  Determine the molecular formula of this substance

A compound has the empirical formula CH2O. When 0.0866 g is dissolved in 1.000 g of ether, the solution's boiling point is 36.5°C. Determine the molecular formula of this substance.

  Write a balanced equation for the reaction

Write a balanced equation for the reaction. What volume of 0.200M MnO4- solution is needed to titrate 22.5mL of a 0.350M solution of ethanol?

  Define the solution of benzoic acid

prepare a PH = 4.00 buffer staring from 1.50 L of 0.0200 M solution of benzoic acid (c6h5cooh) and an excess of sodium benzoate

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd